package com.wolf.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.wolf.common.constant.ProductConstant;
import com.wolf.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.wolf.gulimall.product.dao.AttrGroupDao;
import com.wolf.gulimall.product.dao.CategoryDao;
import com.wolf.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.wolf.gulimall.product.entity.AttrGroupEntity;
import com.wolf.gulimall.product.entity.CategoryEntity;
import com.wolf.gulimall.product.service.CategoryService;
import com.wolf.gulimall.product.vo.AttrGroupRelationVo;
import com.wolf.gulimall.product.vo.AttrResponseVo;
import com.wolf.gulimall.product.vo.AttrVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.wolf.common.utils.PageUtils;
import com.wolf.common.utils.Query;

import com.wolf.gulimall.product.dao.AttrDao;
import com.wolf.gulimall.product.entity.AttrEntity;
import com.wolf.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

@Slf4j
@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    private AttrAttrgroupRelationDao attrAttrgroupRelationDao;
    @Autowired
    private AttrGroupDao attrGroupDao;

    @Autowired
    private CategoryDao categoryDao;

    @Autowired
    private CategoryService categoryService;


    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr, attrEntity);
        //保存基本数据
        this.save(attrEntity);
        //保存关联数据
        if (attr.getAttrType().equals(ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()) && attr
                .getAttrGroupId() != null) {
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrAttrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelationEntity.setAttrId(attrEntity.getAttrId());
            attrAttrgroupRelationDao.insert(attrAttrgroupRelationEntity);
        }

    }

    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String attrType) {
        log.info("进入queryBaseAttrPage");
        //根据类型去匹配查询基本属性还是销售属性
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>()
                .eq("attr_type", "base".equalsIgnoreCase(attrType) ?
                        ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() : ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());

        //根据catelogId查询信息
        if (catelogId != 0) {
            queryWrapper.eq("catelog_id", catelogId);
            log.info("查询的值:{}", queryWrapper.eq("catelog_id", catelogId));
        }

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            //attr_id attr_name
            queryWrapper.and((wrapper) -> wrapper.eq("attr_id", key).or().like("attr_name", key));
        }

        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);

        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();

        List<AttrResponseVo> respVos = records.stream().map((attrEntity) -> {
            AttrResponseVo attrRespVo = new AttrResponseVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);
            //设置分类和分组的名字
            if ("base".equalsIgnoreCase(attrType)) {
                AttrAttrgroupRelationEntity relationEntity =
                        attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (relationEntity != null && relationEntity.getAttrGroupId() != null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relationEntity.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }

            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }
            return attrRespVo;
        }).collect(Collectors.toList());
        pageUtils.setList(respVos);
        return pageUtils;
    }

    /**
     * 查询属性的分组信息和分类信息
     *
     * @param attrId 属性ID
     * @return 分组信息和分类信息
     */
    @Override
    public AttrResponseVo selectAttrInfo(Long attrId) {

        //查询详细信息
        AttrEntity attrEntity = this.getById(attrId);

        //查询分组信息
        AttrResponseVo respVo = new AttrResponseVo();
        BeanUtils.copyProperties(attrEntity, respVo);

        //判断是否是基本类型
        if (attrEntity.getAttrType().equals(ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode())) {
            //1、设置分组信息
            AttrAttrgroupRelationEntity relationEntity = attrAttrgroupRelationDao.selectOne
                    (new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if (relationEntity != null) {
                respVo.setAttrGroupId(relationEntity.getAttrGroupId());
                //获取分组名称
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relationEntity.getAttrGroupId());
                if (attrGroupEntity != null) {
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }

        //2、设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatLogPath(catelogId);

        respVo.setCatelogPath(catelogPath);
        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if (categoryEntity != null) {
            respVo.setCatelogName(categoryEntity.getName());
        }

        return respVo;
    }

    /**
     * 修改商品属性信息
     *
     * @param attr 属性参数
     */
    @Transactional
    @Override
    public void updateAttr(AttrResponseVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr, attrEntity);
        this.updateById(attrEntity);
        //1、修改分组关联
        if (attrEntity.getAttrType().equals(ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode())) {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());

            Integer count = attrAttrgroupRelationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>()
                    .eq("attr_id", attr.getAttrId()));

            if (count > 0) {
                attrAttrgroupRelationDao.update(relationEntity,
                        new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            } else {
                attrAttrgroupRelationDao.insert(relationEntity);
            }
        }

    }


    /**
     * 根据分组ID查询关联所有基本属性
     *
     * @param attrgroupId 分组 ID
     * @return 基本属性信息
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> relationEntities = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        List<Long> attrIds = relationEntities.stream().map(AttrAttrgroupRelationEntity::getAttrId).collect(Collectors.toList());
        if (attrIds.size() == 0) {
            return null;
        }
        return this.listByIds(attrIds);
    }


    /**
     * 根据属性ID和属性分组ID 删除关联关系
     *
     * @param relationVos 属性ID和属性分组ID集合
     */
    @Override
    public void deleteRelation(AttrGroupRelationVo[] relationVos) {
        List<AttrAttrgroupRelationEntity> attrgroupRelationEntities = Arrays.stream(relationVos).map(attrGroupRelation -> {
            //将集合中的每个值都印射到另一个对象中,并将对象放到集合中返回
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(attrGroupRelation, attrAttrgroupRelationEntity);
            return attrAttrgroupRelationEntity;
        }).collect(Collectors.toList());
        attrAttrgroupRelationDao.deleteBatchRelation(attrgroupRelationEntities);
    }

    /**
     * 查询分组没有关联的所有属性
     *
     * @param attrgroupId 分组ID
     * @param params      分页参数
     * @return 属性集合
     */
    @Override
    public PageUtils getNoRelationAttr(Long attrgroupId, Map<String, Object> params) {
        //1、当前分组只能关联自己所属的分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        //获取当前分类的id
        Long catelogId = attrGroupEntity.getCatelogId();

        //2、当前分组只能关联别的分组没有引用的属性
        //2.1）、当前分类下的其它分组
        List<AttrGroupEntity> groupEntities = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>()
                .eq("catelog_id", catelogId));

        //获取到所有的attrGroupId
        List<Long> collect = groupEntities.stream().map((item) -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());


        //2.2）、这些分组关联的属性
        List<AttrAttrgroupRelationEntity> groupId = attrAttrgroupRelationDao.selectList
                (new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));

        List<Long> attrIds = groupId.stream().map((item) -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        //2.3）、从当前分类的所有属性移除这些属性
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>()
                .eq("catelog_id", catelogId).eq("attr_type", ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());

        if (attrIds != null && attrIds.size() > 0) {
            queryWrapper.notIn("attr_id", attrIds);
        }

        //判断是否有参数进行模糊查询
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            queryWrapper.and((w) -> {
                w.eq("attr_id", key).or().like("attr_name", key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);

        PageUtils pageUtils = new PageUtils(page);


        return pageUtils;
    }


    /**
     * 根据属性ID集合查询出可被检索的ID集合
     *
     * @param attrIds 商品属性ID集合
     * @return 可被检索的ID集合
     */
    @Override
    public List<Long> selectSearchAttrIds(List<Long> attrIds) {
        return baseMapper.selectSearchAttrIds(attrIds);
    }

}